149688826 has 24 divisors (see below), whose sum is σ = 261835200. Its totient is φ = 63994392.

The previous prime is 149688823. The next prime is 149688829. The reversal of 149688826 is 628886941.

149688826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (149688823) and next prime (149688829).

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (149688823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43725 + ... + 47023.

It is an arithmetic number, because the mean of its divisors is an integer number (10909800).

Almost surely, 2^149688826 is an apocalyptic number.

149688826 is a deficient number, since it is larger than the sum of its proper divisors (112146374).

149688826 is a wasteful number, since it uses less digits than its factorization.

149688826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778 (or 3771 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 52.

The square root of 149688826 is about 12234.7384933230. The cubic root of 149688826 is about 530.9616172132.

The spelling of 149688826 in words is "one hundred forty-nine million, six hundred eighty-eight thousand, eight hundred twenty-six".